Personally think this stretch the field because of a WR concern is a bit over reaching.
We didn't stretch the field because we didn't throw it down field, personally would rather have someone that has excellent hands and body control/positioning to go down the field than someone who is "much faster" on some speed clock.
If we want to control the game you can't throw balls down the field all game long as it is a low percentage attempt with many high risk/reward attributes. You also would start to look like the old Babich called offense - Run, Run, Bomb, Punt.
Now of course you want to throw it down the field a few times to take shots and keep the D honest. Beyond that you can't hedge your bets on those plays at all.